2 possibilities ...
*Chart views will not be available until the satellites are acquired by the unit ...
*The Connected Transducer Menu under the Sonar tab has been changed to a different xducer than the stock xducer ...
Restore Defaults will set the Connected Transducer back to the factory setting if you don't know which xducer came with the unit ...
Which HELIX 10 do you have ...??
Rickie